Ferrites are high resistivity materials made by compacting MnZn or NiZn plus iron oxides. They derive their magnetic properties by complex interaction of metallic and nonmetallic elements. They are available as bars, toroids, pot cores etc. They are used in inductors, transformers, etc by power electronics industry.
MnZn (MnxZn1-xFe2O4 ) ferrites have higher saturation induction (upto 0.5 T). Their permeability is high (mui = 500 to 20,000). But their resistivity is low. So Mn Zn ferrites are used upto 1 MHz.
NiZn (NixZn1-xFe2O4) ferrites offer lower saturation (< 0.35T). Their permeability is low (mui = 10 to 2000). But their resistivity is high. So NiZn Ferrites are used in 1 MHz to 0.5 GHz range.
MagWeb’s Ferrites Folder has 164 excel files listing magnetic properties of these materials, produced by 6 manufacturers. Of these, 72 files contain B(H) magnetization curves/permeability curves while 92 files contain core loss curves. For a full list of commercial names of all these materials, please click on MagWeb Database – K. Ferrites.
By downloading this folder you will have 164 files on magnetic properties of all ferrites produced world wide!
Please review the User Manual for more technical information of ferrite powder core materials.
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